High-tp filling hole electroplating solution circulating stirring equipment

Abstract

The utility model discloses a high TP fills hole electroplating solution circulating stirring equipment, include: electroplating groove, the inside center fixed junction of electroplating groove has the center square tube, the center square tube is close to the bottom end both sides symmetry and is equipped with a plurality of groups filter hole, the outside movable cover of center square tube is equipped with the square ring of scraping residue, the utility model discloses adopt the close cooperation structure of square center square tube and inverted isosceles trapezoidal square ring of scraping residue, and the accurate lifting system of combination servo motor drive realizes the automation of filter hole intercepts impurity, dead angle cleaning.

Description

Technical Field

[0001] This utility model relates to the technical field of stirring equipment, specifically a high TP hole-filling electroplating solution circulating stirring equipment. Background Technology

[0002] In the electroplating process, the purity and composition uniformity of the electroplating solution directly affect the coating quality. In particular, high-TP through-filling electroplating has even stricter requirements for the cleanliness and concentration consistency of the electroplating solution.

[0003] Existing Chinese patent document CN212293832U discloses a novel circulating stirring device for an electroplating tank, including an electroplating tank, a filter screen inside the electroplating tank, and the side wall of the filter screen being fixedly connected to the inner wall of the electroplating tank. A guide tube is fixedly connected to the top of the filter screen, and the bottom of the guide tube is fixedly connected to the bottom of the inner wall of the electroplating tank. Two through holes are symmetrically opened at the bottom of the side wall of the guide tube. A spiral rod is also provided inside the guide tube, with one end of the spiral rod penetrating the inner wall of the electroplating tank and extending outwards. Stirring rods are provided on both sides of the guide tube, with one end of each stirring rod penetrating the filter screen and the inner wall of the electroplating tank in sequence. Extending outwards, two stirring rods and a screw rod are rotatably connected to the electroplating tank via bearings. This patent can stir the electroplating solution in the electroplating tank, ensuring the uniformity of the electroplating solution, while adsorbing impurities into the conduit and discharging them through the through-holes and blocking them with the filter screen, thereby improving the quality of electroplating. However, this electroplating solution circulation stirring device still has shortcomings: its stirring structure uses a combination of stirring rods and screw rods in a single direction, which limits the stirring range and easily forms stirring dead corners in the electroplating tank, resulting in uneven distribution of electroplating solution components, making it difficult to meet the high precision requirements of high TP filling process for solution uniformity. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the stirring structure of the above-mentioned electroplating solution circulating stirring device adopts a combination of a stirring rod and a screw rod in a single direction, which has a limited stirring range and is prone to forming a stirring dead corner in the electroplating tank, resulting in uneven distribution of electroplating solution components and difficulty in meeting the high precision requirements of high TP hole filling process for solution uniformity. Therefore, this invention provides a high TP hole filling electroplating solution circulating stirring device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-TP pore-filling electroplating solution circulation and stirring device, comprising: an electroplating tank, a central square tube fixedly connected to the center of the electroplating tank, several sets of filter holes symmetrically opened on both sides near the bottom of the central square tube, a scraping square ring movably sleeved on the outside of the central square tube, a dust cover fixedly mounted on the top of the electroplating tank, a rotating groove penetrating through the center of the dust cover, a rotating cylinder movably passing through the rotating groove, a driven gear plate fixedly connected to the top of the rotating cylinder, a connecting plate fixedly connected to one end of the inner side of the driven gear plate, a stirring motor installed on the top of the connecting plate, a stirring element provided at the output end of the stirring motor, a square tube cover covering the top of the central square tube, a suction pump installed on the top of the square tube cover, a liquid outlet pipe connected through the output end of the suction pump, a nozzle connected to the end of the liquid outlet pipe, and a placement rack mounted on the top of the electroplating tank.

[0006] As a further embodiment of this utility model: the central square tube is fixedly erected on the center line inside the electroplating tank. The central square tube is configured as a square tube structure, and several sets of evenly arranged filter holes are opened on both opposite sides to filter impurities in the electroplating solution and intercept them outside the central square tube. The slag scraping ring is tightly fitted on the outside of the central square tube.

[0007] As a further embodiment of this utility model: the slag scraping square ring is configured as a ring structure with an inverted isosceles trapezoidal cross-section. The two ends of the slag scraping square ring are symmetrically fixed with bow-shaped connecting frames. Both sets of bow-shaped connecting frames are engaged with the side plates of the electroplating tank, and screw hole blocks are fixed to the outer side of the ends of the two sets. A lifting slot frame is fixed to the outer side of the electroplating tank at the position corresponding to the bow-shaped connecting frame. A servo motor is fixed to the top of the lifting slot frame. A rotating screw is provided at the output end of the servo motor. The screw hole block is located inside the corresponding lifting slot frame and is slidably connected and screwed onto the outside of the corresponding rotating screw.

[0008] As a further embodiment of this utility model: the driven gear disc is inserted into the rotating groove along with the rotating cylinder and stably mounted on the top of the dust cover, and can rotate flexibly at a fixed point. The connecting plate is fixed to one end of the inner side of the driven gear disc, driving the stirring motor and stirring components to perform full stirring operations of the electroplating solution in the electroplating tank by rotation and revolution.

[0009] As a further embodiment of this utility model: a notch is provided on one side of the top of the electroplating tank and a motor frame is fixedly connected inside. A drive motor is installed on the top of the motor frame. A drive gear is provided at the output end of the drive motor. The drive gear and the driven gear are located on the same horizontal plane and mesh with each other.

[0010] As a further embodiment of this utility model: the inlet pipe of the suction pump installed at the top of the square tube cover is connected to the bottom of the center square tube, the outlet pipe end is fixedly fitted with a pipe threaded cylinder, the nozzle top end is fixedly fitted with a limiting ring, the pipe threaded cylinder is screwed with a pressure ring threaded cylinder inside, the outer diameter of the limiting ring is adapted to the inner diameter of the pipe threaded cylinder, the nozzle limiting ring is pressed into the pipe threaded cylinder and the pressure ring threaded cylinder is tightened to quickly install and replace nozzles with different orifice diameters.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention employs a tightly fitted structure of a square central tube and an inverted isosceles trapezoidal scraping ring, combined with a servo motor-driven precision lifting system, to achieve automated and thorough cleaning of the filter holes to intercept impurities. Compared to traditional equipment that relies solely on filter elements or manual cleaning, this design ensures the filtration efficiency of the electroplating solution through evenly distributed filter holes, while the trapezoidal structure and stable lifting motion of the scraping ring prevent impurities from accumulating and clogging, continuously maintaining the high purity of the circulating electroplating solution, significantly reducing the electroplating defect rate caused by impurity contamination, and improving product quality stability. This invention employs a composite stirring method of "rotation + revolution" combined with a circulating spray structure featuring replaceable nozzles of different diameters to form a three-dimensional stirring and circulation network. Compared to similar equipment with single-direction stirring or fixed-flow circulation designs, this system can completely eliminate stirring dead zones within the electroplating tank. Simultaneously, the flexible adjustment of the nozzles enables precise control of the electroplating solution flow and pressure, adapting to the stringent requirements for solution uniformity in different TP filling electroplating processes, and significantly improving the uniformity of coating thickness and the consistency of filling quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a high-TP pore-filling electroplating solution circulating stirring device according to the present invention; Figure 2 This is a schematic diagram of the central square tube in the high TP hole-filling electroplating solution circulating stirring device described in this utility model; Figure 3 This is a schematic diagram of the driven gear disc in the high TP filling electroplating solution circulating stirring device of this utility model; Figure 4 This is a schematic diagram of the drive gear in the high TP pore-filling electroplating solution circulating stirring device described in this utility model; Figure 5 This is a schematic diagram of the outlet pipe in a high-TP pore-filling electroplating solution circulating stirring device described in this utility model.

[0013] In the diagram: 1. Electroplating tank; 2. Central square tube; 3. Filter hole; 4. Slag scraper square ring; 5. Bow-shaped connecting frame; 6. Screw hole block; 7. Lifting slot frame; 8. Servo motor; 9. Rotating screw; 10. Dust cover; 11. Rotating slot; 12. Rotating cylinder; 13. Driven gear plate; 14. Connecting plate; 15. Stirring motor; 16. Stirring component; 17. Motor frame; 18. Drive motor; 19. Drive gear; 20. Square tube cover; 21. Suction pump; 22. Liquid outlet pipe; 23. Pipe threaded cylinder; 24. Nozzle; 25. Limiting ring; 26. Pressure ring threaded cylinder; 27. Placement rack. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0016] Reference Figures 1 to 5In this embodiment of the present invention, a high-TP pore-filling electroplating solution circulating stirring device includes: an electroplating tank 1, a central square tube 2 fixedly connected to the center of the electroplating tank 1, several sets of filter holes 3 symmetrically opened on both sides near the bottom of the central square tube 2, a scraper square ring 4 movably sleeved on the outside of the central square tube 2, a dust cover 10 fixedly mounted on the top of the electroplating tank 1, a rotating groove 11 penetrating through the center of the dust cover 10, a rotating cylinder 12 movably passing through the rotating groove 11, a driven gear disc 13 fixedly connected to the top of the rotating cylinder 12, a connecting plate 14 fixedly connected to one end of the inner side of the driven gear disc 13, a stirring motor 15 installed on the top of the connecting plate 14, a stirring element 16 provided at the output end of the stirring motor 15, a square tube cover 20 covering the top of the central square tube 2, a suction pump 21 installed on the top of the square tube cover 20, a liquid outlet pipe 22 connected through the output end of the suction pump 21, a nozzle 24 connected to the end of the liquid outlet pipe 22, and a placement rack 27 mounted on the top of the electroplating tank 1.

[0017] Reference Figure 2 The central square tube 2 is fixedly erected on the center line inside the electroplating tank 1. The central square tube 2 is set as a square tube structure, and several sets of evenly arranged filter holes 3 are opened on both sides to filter impurities in the electroplating solution and intercept them outside the central square tube 2. The slag scraping ring 4 is tightly fitted on the outside of the central square tube 2.

[0018] The central square tube 2 adopts a square tube structure, which, compared to a round tube, can form a closer fit with the scraping ring 4, avoiding problems such as relative rotation or excessive gaps during the scraping process, thus improving the stability of the scraping. Several sets of evenly arranged filter holes 3 can ensure that the electroplating solution passes through the filter structure evenly during the flow process, avoiding uneven filtration effect caused by excessive local filtration pressure. At the same time, the filter holes 3 can accurately intercept impurity particles in the electroplating solution, preventing impurities from entering the interior of the central square tube 2 and participating in the circulation, ensuring the purity of the circulating electroplating solution, and thus improving the quality stability of the electroplated products. The scraping ring 4 is tightly fitted on the outside of the central square tube 2, providing a basis for subsequent scraping of impurities attached to the outer wall of the central square tube 2, and preventing impurities from accumulating and clogging the filter holes 3.

[0019] Reference Figure 2 The slag scraping square ring 4 is configured as a ring structure with an inverted isosceles trapezoidal cross section. The two ends of the slag scraping square ring 4 are symmetrically fixed with bow-shaped connecting frames 5. Both sets of bow-shaped connecting frames 5 are engaged with the side plate of the electroplating tank 1, and screw hole blocks 6 are fixed to the outer side of the ends. The outer side of the electroplating tank 1 is fixed with a lifting slot frame 7 corresponding to the bow-shaped connecting frame 5. The top of the lifting slot frame 7 is fixed with a servo motor 8. The output end of the servo motor 8 is provided with a rotating screw 9. The screw hole block 6 is located inside the corresponding lifting slot frame 7 and is slidably connected and screwed onto the outside of the corresponding rotating screw 9.

[0020] The scraper ring 4 adopts an inverted isosceles trapezoidal cross-section design. Its structure, wider at the top and narrower at the bottom, allows for more efficient upward pushing of impurities when scraping, reducing impurity residue. Simultaneously, the trapezoidal structure enhances the ring's structural strength, preventing deformation caused by long-term scraping. The symmetrically distributed bow-shaped connecting frames 5 ensure stable support for the scraper ring 4, and their elasticity buffers minor vibrations during scraping, protecting connecting components. Two sets of bow-shaped connecting frames 5 engage with the side plate of the electroplating tank 1, and together with the sliding connection within the lifting frame 7, provide stable lifting guidance for the scraper ring 4, preventing deviation during lifting. The servo motor 8 drives the rotating screw 9 to rotate, achieving precise lifting control of the scraper ring 4 through the screw connection of the screw hole block 6. This not only allows for flexible adjustment of the scraping frequency and stroke based on the amount of impurities, but also enables automated scraping operation, reducing manual intervention and improving equipment operating efficiency.

[0021] Reference Figure 3 The driven gear plate 13 is inserted into the rotating groove 11 along with the rotating cylinder 12 and is stably mounted on the top of the dust cover 10. It can rotate flexibly at a fixed point. The connecting plate 14 is fixed to one end of the inner side of the driven gear plate 13, which drives the stirring motor 15 and the stirring component 16 to perform a thorough stirring operation of the electroplating liquid in the electroplating tank 1 by rotating and revolving.

[0022] The cooperative structure of the rotating cylinder 12 and the rotating groove 11 provides stable rotational support for the driven toothed disc 13, ensuring that the driven toothed disc 13 will not wobble or deviate during rotation, thus guaranteeing the operational stability of the overall stirring mechanism. The fixed-point flexible rotation design of the driven toothed disc 13, combined with the transmission action of the connecting plate 14, allows the stirring motor 15 and the stirring component 16 to both rotate around their own axis driven by the stirring motor 15 and revolve around the central square tube 2 following the driven toothed disc 13. This composite stirring method of "rotation + revolution" can greatly expand the stirring range, avoid the occurrence of stirring dead zones in the electroplating tank 1, and make the components in the electroplating solution more uniformly mixed and the concentration distribution more consistent, thereby ensuring the uniformity of the thickness and the stability of the performance of the electroplated layer.

[0023] Reference Figure 4 The electroplating tank 1 has a notch on one side of the top and a motor frame 17 is fixed inside. A drive motor 18 is installed on the top of the motor frame 17. The output end of the drive motor 18 is provided with a drive gear 19. The drive gear 19 and the driven gear 13 are located on the same horizontal plane and mesh with each other.

[0024] The notch at the top of the electroplating tank 1 provides installation space for the motor frame 17, allowing the drive motor 18 to be precisely aligned and installed. The motor frame 17 provides stable support for the drive motor 18, preventing it from shaking during operation and ensuring the stable rotation of the drive gear 19. The drive motor 18 meshes with the driven gear 13 through the drive gear 19 at the output end. This gear transmission method features high transmission efficiency and stable torque transmission, enabling precise control of the rotation speed and angle of the driven gear 13, thereby achieving precise adjustment of the revolution speed of the stirring component 16 and meeting the stirring intensity requirements of different electroplating processes. The design of the drive gear 19 and the driven gear 13 being on the same horizontal plane ensures the tightness and stability of their meshing, reduces noise and wear during transmission, and extends the service life of the equipment. At the same time, this design allows the stirring structure to be removed as a whole along with the driven gear 13 for maintenance or replacement, improving the applicability and maintainability of the equipment.

[0025] Reference Figure 4 and Figure 5 The suction pump 21 installed at the top of the square tube cover 20 has an inlet pipe that extends into the bottom of the central square tube 2. The outlet pipe 22 has a fixed sleeve on the outer side of the end. The nozzle 24 has a fixed sleeve on the outer side of the top. The nozzle 24 has a fixed sleeve on the outer side of the top. The nozzle 24 has a screw threaded sleeve 26 inside the nozzle threaded sleeve 23. The outer diameter of the limiting ring 25 is compatible with the inner diameter of the nozzle threaded sleeve 23. The limiting ring 25 of the nozzle 24 is pressed into the nozzle threaded sleeve 23 and the screw threaded sleeve 26 is tightened to quickly install and replace nozzles 24 with different orifice diameters.

[0026] The above solution involves the suction pump 21 having its inlet pipe extending deep into the bottom of the central square tube 2, efficiently extracting clean electroplating solution filtered through the filter holes 3. This ensures the purity of the electroplating solution entering the circulation system. The threaded sleeve 23 at the end of the outlet pipe 22 is screwed into the threaded sleeve 26 of the pressure ring. The nozzle 24 is quickly fixed by squeezing the limiting ring 25. This connection method allows for the installation and replacement of the nozzle 24 without the need for complex tools, greatly improving the convenience of equipment maintenance. The size matching design of the limiting ring 25 and the threaded sleeve 23 ensures the stability of the nozzle 24 after installation, preventing it from loosening or shifting during high-pressure spraying. The design allows for the replacement of nozzles 24 with different orifice diameters, enabling the equipment to adjust the spray flow and pressure of the electroplating solution according to actual needs, adapting to different electroplating process requirements and enhancing the versatility and flexibility of the equipment.

[0027] The working principle of this utility model is as follows: During the electroplating operation, the electroplating solution is stored in the electroplating tank 1, and the workpiece to be electroplated can be placed on the placement rack 27 for processing. The central square tube 2 serves as the core filtration and circulation channel and is fixed in the center of the electroplating tank 1. The filter holes 3 on both sides of the tube will filter the electroplating solution. When the electroplating solution flows to the vicinity of the central square tube 2, impurities are intercepted by the filter holes 3 on the outside of the central square tube 2, and the clean electroplating solution enters the interior of the central square tube 2 through the filter holes 3, providing a pure medium for subsequent circulation. To prevent the filter holes 3 from being clogged by the accumulation of impurities, the scraper ring 4 will be cleaned periodically: the servo motor 8 drives the rotating screw 9 to rotate. Since the screw hole block 6 is screwed onto the rotating screw 9 and slides in the lifting slot frame 7, the rotation of the rotating screw 9 is converted into the lifting motion of the screw hole block 6. In turn, the scraper ring 4 is driven to rise and fall along the outside of the central square tube 2 through the bow-shaped connecting frame 5. The scraper ring 4 adopts an inverted isosceles trapezoidal cross section. During the lifting process, it can efficiently push the impurities attached to the outer wall of the central square tube 2. With its tight fit with the square central tube 2, it ensures that the impurities are thoroughly cleaned and the filter holes 3 remain unobstructed. Meanwhile, the agitation of the electroplating solution is achieved through a combination of rotation and revolution: the drive motor 18 on the motor frame 17 drives the drive gear 19 to rotate. Since the drive gear 19 meshes with the driven gear disk 13 and is on the same horizontal plane, the power is transmitted to the driven gear disk 13, causing the driven gear disk 13 to rotate stably with the rotating cylinder 12 within the rotating groove 11 of the dust cover 10. The dust cover 10 can prevent external impurities from falling into the electroplating tank 1. The connecting plate 14 on the inner side of the driven gear disk 13 then drives the stirring motor 15 and the stirring component 16 to revolve around the central square tube 2. At the same time, the stirring motor 15 directly drives the stirring component 16 to rotate around its own axis. This combined motion greatly expands the stirring range, eliminates the dead zones in the electroplating tank 1, and ensures that the metal ions, additives, and other components in the electroplating solution are evenly distributed. In addition, the circulation system of the electroplating solution further improves the uniformity: the suction pump 21 at the top of the square tube cover 20 draws the filtered clean electroplating solution from the bottom of the central square tube 2 through the inlet pipe, and delivers it to the nozzle 24 through the outlet pipe 22. Finally, the nozzle 24 sends the electroplating solution back to the electroplating tank 1 to form a complete circulation. The nozzle 24 is inserted into the threaded cylinder 23 of the pipe opening through the limiting ring 25, and then tightened by the threaded cylinder 26 of the pressure ring. The nozzle 24 with different orifice diameters can be quickly replaced, and the spray flow rate and pressure can be flexibly adjusted to meet the needs of different electroplating processes.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-TP through-filling electroplating solution circulating stirring device, comprising: An electroplating tank (1) is characterized in that a central square tube (2) is fixedly connected to the center of the electroplating tank (1), and several sets of filter holes (3) are symmetrically opened on both sides near the bottom end of the central square tube (2). A scraper ring (4) is movably sleeved on the outside of the central square tube (2). A dust cover (10) is fixedly mounted on the top of the electroplating tank (1). A rotating groove (11) is opened through the center of the dust cover (10). A rotating cylinder (12) is movably inserted inside the rotating groove (11). A driven gear disc (13) is fixedly connected to the top of the rotating cylinder (12). A connecting plate (14) is fixed to one end of the inner side of the driven gear disc (13). A stirring motor (15) is installed at the top of the connecting plate (14). A stirring component (16) is provided at the output end of the stirring motor (15). A square tube cover (20) is provided at the top of the central square tube (2). A suction pump (21) is installed at the top of the square tube cover (20). A liquid outlet pipe (22) is connected through the output end of the suction pump (21). A nozzle (24) is connected at the end of the liquid outlet pipe (22). A placement rack (27) is provided at the top of the electroplating tank (1).

2. The high-TP hole-filling electroplating solution circulating stirring device according to claim 1, characterized in that, The central square tube (2) is fixedly erected on the center line inside the electroplating tank (1). The central square tube (2) is set as a square tube structure, and several sets of uniformly arranged filter holes (3) are opened on both sides to filter impurities in the electroplating solution and intercept them outside the central square tube (2). The scraper ring (4) is tightly fitted on the outside of the central square tube (2).

3. The high-TP hole-filling electroplating solution circulating stirring device according to claim 1, characterized in that, The scraper ring (4) is configured as a ring structure with an inverted isosceles trapezoidal cross section. The scraper ring (4) is symmetrically fixed with bow-shaped connecting frames (5) at both ends. Both sets of bow-shaped connecting frames (5) are engaged on the side plate of the electroplating tank (1), and screw hole blocks (6) are fixed to the outer side of the end. A lifting slot frame (7) is fixed to the outer side of the electroplating tank (1) at the corresponding position of the bow-shaped connecting frame (5). A servo motor (8) is fixed to the top of the lifting slot frame (7). A rotating screw (9) is provided at the output end of the servo motor (8). The screw hole block (6) is located inside the corresponding lifting slot frame (7) and is slidably connected and screwed onto the outside of the corresponding rotating screw (9).

4. The high-TP hole-filling electroplating solution circulating stirring device according to claim 1, characterized in that, The driven gear disc (13) is inserted into the rotating groove (11) along with the rotating cylinder (12) and is stably mounted on the top of the dust cover (10). It can rotate flexibly at a fixed point. The connecting plate (14) is fixed to one end of the inner side of the driven gear disc (13) to drive the stirring motor (15) and the stirring component (16) to perform full stirring of the electroplating liquid in the electroplating tank (1) by rotation and revolution.

5. The high-TP hole-filling electroplating solution circulating stirring device according to claim 1, characterized in that, The electroplating tank (1) has a notch on one side of the top and a motor frame (17) is fixed inside. A drive motor (18) is installed on the top of the motor frame (17). A drive gear (19) is provided at the output end of the drive motor (18). The drive gear (19) and the driven gear disk (13) are located on the same horizontal plane and mesh with each other.

6. The high-TP hole-filling electroplating solution circulating stirring device according to claim 1, characterized in that, The inlet pipe of the suction pump (21) installed at the top of the square tube cover (20) is connected to the bottom of the center square tube (2). The outlet pipe (22) is fixedly fitted with a pipe thread cylinder (23) on the outside. The nozzle (24) is fixedly fitted with a limiting ring (25) on the outside. The pipe thread cylinder (23) is screwed with a pressure ring thread cylinder (26) inside. The outer diameter of the limiting ring (25) is compatible with the inner diameter of the pipe thread cylinder (23). The limiting ring (25) of the nozzle (24) is pressed into the pipe thread cylinder (23) and the pressure ring thread cylinder (26) is screwed in to quickly install and replace nozzles (24) with different orifice diameters.

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